Do ethics matter in professional sports?

MPR News host Kerri Miller spoke with Shawn Klein, the philosopher behind the Sports Ethicist blog, and Mary Jo Kane, director of the University of Minnesota Tucker Center for Research on Girls & Women in Sport, about ethics and pro sports. How do Major League Baseball or the National Football League justify keeping players with a history of domestic assault on the field? Does athletic skill and the ability to draw a crowd trump illegal or unethical behavior?